試題詳解

9. Consider two separate solutions of equal concentration. The first solution contains sodium hydroxide, and the second solution contains barum hydroxide. Which solution has the lower pH?
(A) the sodium hydroxide solution
(B) the barium hydroxide solution
(C) the pH's of the two solutions are equal
(D) we need to know the concentrations to answer this questio
(E) we need to know the volumes to answer this question